Home / 15,312,484.88-21,131,707.65-8,787,307.94

Finding the Fourth Proportional to 15,312,484.88, 21,131,707.65 and 8,787,307.94

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Solution

The fourth proportional to 15,312,484.88, 21,131,707.65 and 8,787,307.94 is: 12,126,759.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,312,484.88 : 21,131,707.65 = 8,787,307.94 : x
  2. Step 2: Convert to fraction form
    15,312,484.88/21,131,707.65 = 8,787,307.94/x
  3. Step 3: Cross multiply
    15,312,484.88x = 21,131,707.65 × 8,787,307.94
  4. Step 4: Simplify right side
    15,312,484.88x = 185,690,822,418,603.72
  5. Step 5: Solve for x
    x = 185,690,822,418,603.72/15,312,484.88
  6. Step 6: Final answer
    x = 12,126,759.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.